. Author manuscript; available in PMC: 2016 Feb 11.

Published in final edited form as: Nucl Instrum Methods Phys Res A. 2016 Jan 11;806:330–339. doi: 10.1016/j.nima.2015.09.115

Table 3.

Optimum collimator configuration & BiCoreTM collimators specifications.

Isotope	Proposed Energy-optimized Collimator				LEHR ^99mTc	MELP ⁶⁷Ga
Isotope	⁵⁷Co	^99mTc	¹²³I	¹¹¹In	LEHR ^99mTc	MELP ⁶⁷Ga
Hole shape	Square	Square	Square	Square	Hexagonal	Hexagonal
Number of Holes	16384	16384	16384	16384	148000	14000
Hole length	23 mm	23 mm	23 mm	23 mm	24.05 mm	40.64 mm
Septal thickness	0.32 mm	0.32 mm	0.32 mm	0.32 mm	0.16 mm	1.14 mm
Hole material	Tungsten alloy	Tungsten alloy	Tungsten alloy	Tungsten alloy	Lead	Lead
Hole Diameter	1.28 mm	1.28 mm	1.28 mm	1.28 mm	1.11 mm	2.94 mm
Sensitivity @10 cm	291 cpm/uCi	261 cpm/uCi	241 cpm/uCi	504 cpm/uCi	202 cpm/uCi	310 cpm/uCi
Resolution @10 cm	6.82 mm	6.91 mm	7.08 mm	7.29 mm	7.4 mm	12.5 mm
Septal Penetration	3.7%	4.1%	11.3%	17.9%	1.5%	1.2%